Perl command line input?

How do I setup a Perl开发者_StackOverflow社区 script so that the input on the command line denotes what/where the script looks at (what directory)?

example:

cdm line:>perl text.pl C:/pathtodirectory/

In the script I get a veriable $path to be set to: C:/pathtodirectory

Thanks

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You need to use the @ARGV array.

So in your text.pl:

my $path = shift(@ARGV);

or

my $path = shift; # @ARGV is the default in the main part of your script

@ARGV is each item on the command line starting from index 0 ... so if you had more options like

text.pl some/path some_other_option

some_other_option would be available as $ARGV[1]

For more advanced path processing take a look at the Getopt::Std or Getopt::Long modules (they should be included with Perl by default.

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Command line arguments are placed in the array @ARGV. You can get them like:

my $path = shift @ARGV;
# or just (shift defaults to using @ARGV outside of any function):
my $path = shift;

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The @ARGV predefined variable contains the command-line arguments to the script.

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In this case you can use perl's Getopt::Long module documented here.

Or you can simply parse ARGV:

$ perl -MData::Dumper -e 'print Dumper \@ARGV;' foo bar